Structures

A type-safe interface to variables in the environment from which the process was launched.

A property wrapper that uses the specified environment variable name for property access and backing storage.

The following example shows how to use the EnvironmentVariable property wrapper to expose static properties backed by enviornment variables ("HOST" and "PORT").

enum ServerSettings {
    @EnvironmentVariable(name: "HOST")
    static var host: URL?

    @EnvironmentVariable(name: "PORT", defaultValue: 8000)
    static var port: Int
}